package com.fzn.spring5.config;

import com.alibaba.druid.pool.DruidDataSource;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.sql.DataSource;

/**
 * @program: spring5_txdemo1
 * 描述：
 *  EnableTransactionManagement 开启事务
 * @author: fzn
 * @create: 2022-02-27 21:16
 **/
@Configuration
@ComponentScan(basePackages = "com.fzn.spring5")
@EnableTransactionManagement
public class TxConfig {
    // 参加数据库的连接池
    @Bean
    public DruidDataSource getDruidDataSource() {
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setDriverClassName("com.mysql.jdbc.Driver");
        dataSource.setUrl("jdbc:mysql:///user_db");
        dataSource.setUsername("root");
        dataSource.setPassword("root");
        return dataSource;
    }

    // 创建JdbcTemplate 对象
    @Bean
    public JdbcTemplate getJdbcTemplate(DataSource dataSource) {
        JdbcTemplate jdbcTemplate = new JdbcTemplate();
        // 注入 dataSource
        jdbcTemplate.setDataSource(dataSource);
        return jdbcTemplate;
    }

    // 创建事务管理器
    @Bean
    public DataSourceTransactionManager getDataSourceTransactionManager(DataSource dataSource) {
        DataSourceTransactionManager transactionManager = new DataSourceTransactionManager();
        transactionManager.setDataSource(dataSource);
        return transactionManager;
    }
}